Hello, I had the same problems sending data from a Qt application to Splunk.
First of all you have to replace:
QString headerData = "Splunk XXXXXXXXXXXXXXXXXXXXXXXXXX";
request.setRawHeader("Authorization:", headerData.toLocal8Bit());
with:
request.setRawHeader(QByteArray("Authorization"), QByteArray("Splunk XXXXXXXXXXXXXXXXXXXXXXXXXX"));
(Authorization without colon)
... View more